Split addons/themes generators to their own app (bug 1089548)
Merge branch 'master' of github.com:mozilla/olympia into 1089548-split-landfill-app

Conflicts:
	apps/amo/management/commands/install_landfill.py
Fixing the inheritance in nomination time across new versions (bug 717495)
Merge pull request #345 from davidbgk/1089548-split-landfill-app

Split addons/themes generators to their own app (bug 1089548)
Delete the preview file no matter what happened (bug 1051854)
Merge pull request #354 from davidbgk/717495-pending-queues-reset

Fixing the inheritance in nomination time across new versions (bug 717495)
Merge pull request #355 from davidbgk/1051854-finally-unlink-previews

Delete the preview file no matter what happened (bug 1051854)